64432832 has 42 divisors (see below), whose sum is σ = 130398012. Its totient is φ = 31586304.

The previous prime is 64432829. The next prime is 64432861. The reversal of 64432832 is 23823446.

64432832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 602123 + ... + 602229.

Almost surely, 2^64432832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64432832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65199006).

64432832 is an abundant number, since it is smaller than the sum of its proper divisors (65965180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64432832 is an equidigital number, since it uses as much as digits as its factorization.

64432832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 206 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 64432832 is about 8027.0064158440. The cubic root of 64432832 is about 400.8997081293.

The spelling of 64432832 in words is "sixty-four million, four hundred thirty-two thousand, eight hundred thirty-two".